Cattle creep
A cattle creep is a small, field-to-field access for farm animals, usually to allow passage beneath an obstacle such as a road, canal, or railway embankment.
As they are intended primarily for cattle or other livestock, cattle creeps usually have a low head height and are uncomfortable for humans to use.
On Dartmoor, in south west England, the term sheep creep is used to describe a purposely constructed gap in the base of a drystone wall, commonly topped with a granite lintel. The gap allows sheep to pass from field to field, but is deliberately too small for cattle or ponies.
